1 files changed, 1 insertions, 1 deletions

diff --git a/proxy.c b/proxy.c
index 16b8286..a870c63 100644
--- a/proxy.c
+++ b/proxy.c
@@ -485,7 +485,7 @@ static void panic(const char *routine) {
 }
 
 static int64_t ot_try_bind(ot_ip6 ip, uint16_t port) {
-  int64_t sock = socket_tcp_listen(ip, port);
+  int64_t sock = socket_tcp_listen(ip, port, SOCKET_EXCLUSIVE);
 
   if (sock == -1)
     panic("socket_tcp_listen");